Wendy purchased 800 shares of Robotics Stock at $3 per share on 1/1/09. Wendy sold the shares on 12/31/09 for $3.45. Genetics stock has a beta of 1.3, the risk-free rate of return is 3%, and the market risk premium is 8%. The required return on Genetics Stock is 13.4%. 16.5%. 17.6%. 21.1%.